Feed for thread winders



Mar. 13, 1923, 1,448,509. G. E. ALLEN. lFEED Foa THREAD wlNDERs.

FILED NOV.16. 1921. 2 SHEETS-SHEET 2 e '44 l Z6 45 Z7 4@ 50 i wf/wal?.

il` :l 52 www Patented fia/lar. l, 1923.

narra sam@ GEORGE E. ALLEN, or PHILADELPHIA, PENNSYLVANIA.

FEED FOR THREAD WINDERS.

Application led November 16, 1921. Serial No. 515,473.-

To all 107mm t may concern.'

Be it known that l, GEORGE E. ALLEN, a citizen of the United States, and a resident of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented certain new and useful mprovements in Feeds for Thread lVinders, of which the following is a specification.

Some of the objects of the present invention are to provide an improved mechanism for winding thread or the like upon bobbins, spools, cops, or any other form upon which thread is to be built up; to provide a feeding device for thread winders wherein the feeding operation ceases in case the thread breaks; to provide means for automatically varying the stroke limits of a thread guide as a bobbin is built up; to provide a feed guide, for thread winders, arranged to ybe controlled by the thread being wound; and to provide other improvements as will hereinafter appear.

In the accompanying drawings, Fig. l represents a side elevation of a thread H winder embodying one form ofthe present invention, shown in connection with abobbin during the winding operation; Fig. 2 represents a plan of the winding mechanism; Fig. 3 represents a rear elevation of the winding mechanism; Fig. t represents a section on line 4 4 of Fig. 2; Fig. 5 represents a section on line 5-5 of Fig. 2; and Fig. 6 represents a plan of one form of cam for causing reciprocation of the winding mechanism. l

Referring to the drawings, one form of the present invention is illustrated in conjunction with a bobbin l0, which is of any standardor suitable form, arranged to rotate with a rotary spindle ll, which is journalled in and supported -by a bearing bracket 12 rigidly secured to a rod 13 or other fixed part of the windingmachine.

In order to rotatethe'bobbin l() for Winding purposes, the spindle 11 has a fric-tion driven disc 14C fixed thereto and frictionally engaging 'the periphery of a friction drive wheel 15, which is fast to a shaft 16 driven any suitable source of power.

For delivering the thread 20to the bob- KVbin '10 forl Windingpurposes, an apertured or, slotted guide 21,v of earthenware, glassor other materialv permitting the .thread 20 to run freely, is fixed to a rod 22.Whicl1 1s supported in operative position upon a movable carrier 23. `Preferably this rod'22 is mechanisms y y bracket 34 upon the bar 3S is a cam roller 35 of sufficient length to properly guide the thread 20 from the let-off spool (not shown) to a guide wheel or pulley 24, but is so spaced therefrom as to permit the thread 20 to be easily handled when placing it on the winding mechanism.. The thread surface of the pulley 24, .around which the thread 20 passes, is preferably grooved circumferentially so that the thread 20 is prevented from slipping or throwing off the pulley 24 during the .winding operation. rllhe pulley 24E is carried by a shaft 25 journalled in bearings 26 which form a part of the carrier 23. f

ln order to cause the thread travel longitudinally of the bobbin form l0 with the back and forth motion necessary for proper winding, the carriage 23 is arranged to be reciprocated by mounting it for` free sliding movement upon a fixed feed screw 27, and providing a rigid extension 28 yhaving a guide bearing 30, accurately fitted to a post 3l for sliding movement. T he feed screw 27 and the postl are fast to a base plate 32 and extend vertically therefrom, in parallel relation, a distance sufficient to permit. the carriage 23 to be given the required winding stroke for any bobbin form which is to be wound. The Aplate 32 is arranged to be removably mounted upon, or otherwise secured to, a transverse bar 33 suitably mounted as a reciprocatory part of the body of the machine and serving as a common mounting for a number of separate winding if desired. Journalled to a arranged to ride upon the cam face ofva double end cam 36 which operates to give two reciprocations of the carriage 23. for each revolution of the cam 36. A shaft 37 carries the cam 36 and is driven yby bevel gears 40v and Lll from the shaft 16, or in any other suitable manner for `correct timing of thereciprocatory action.

As the winding of the bobbin l0 is built up it is necessary, in order lto produce a cylindrical surface of uniform diameter, to

provide rmeans for shifting the'stroke of the carriage 23 uniformly towards the top of the bobbin. This shiftingtakes pla-ce at each reciproc-ation and the amount of each shifting movement is substantially equal to the thickness .or diameter of the threadbeing wound. fn order. to accomplishl this step lby step feeding of the carriage 23, a sleeve 4:2 is provided which fitsfreely over the feed screw 27 to slide lthereon and is fastened to the carriage 23 by a bushing 43 and a collar 44 thereby transmit'the same movement to the sleeve 42 and thecarriage 23.

For the purpose of turning lthe wheel 46 it is arranged in close vproirimity'to'and in overlapping relation witha worm gear 50 which` is rotatablymounted yupon a stud y51 bolted to the carriage 23, and in mesh with a wormr52'fast to the shaft 25.` The gear 5() i `,is provided with a plurality ofv tapped holes 53, all equally spaced radially from the axis and arranged to receivethreaded pins 54 which coact 'with' the projection of the star wheel 46. In the present construction two such pins 54 are employed, these being located diametrically opposite to each other to cause the star wheel 146 to move the `distance of one tooth twice for each revolution ofthe gear 50and thereby feeding the carriage 23 the required distance for accurate winding. f

' In connection with the foregoing construction it will be noted that the shaft 25 is driven by the .pulley 24 from the thread 20 as it passes around thev pulley 24 under the winding action of the bobbin 10. Ey this construction the feeding movement of the carriage 23 is entirely dependent upon the i' thread 20, so thatV in case the thread 20 breaks, during a winding operation, the

carriage' 23 remains stationary until .the

thread 2O is again connected and resumes winding.v This rinsures resuming the wind.-

ying at thesame convolution of the bobbin l `winding where it stopped and -results in a uniform building up of the bobbin with no evidence of the aforesaid break. In winding mechanisms as heretofore constructed the feeding mechanism vof the thread guide is controlled by means other than the thread, and in consequence' if the thread breaks the guide feed continues to operate while the thread is being connected again. The

resulty is that the winding is resumed several convolutions beyond where it left oiii' and the resulting wound bobbin has an uneven 'and irregular appearance at the place or places where the thread yhad broken.`

The yoperation of the winding mechanismy A-is vas follows: The thread 20 lis initially secured 4to vthe bottom of the empty bobbin 'and the machine is'ista'rted to cause theshaft 16 to rotate to transmit motion to the bobbin 10.' The frictional drive l4 an"d 15 per mits the bobbin 10 to be removed, replaced or held while the thread is connected without stopping the shaft 16 by shutting down the entire machine temporarily. With the bobbin 10 in Ymotion the thread 20 is fed thereto and causes the pulley 24 to rotate while the` cam 36 reciprocates the carriage 23 through a distance equal. to one half thel length of the bobbin 10. The rotation of the pulley 24 y'causes the gear 50to rotate and `thereby bringv the respective' pins 54 intermittently into engagement with the star wheel 46, which is thus given a step-by-step vmotion and advances the finger 47 along the threads of the feedscrew 27. Thei'carriage 23 is thus movedfto change the limit positions of the thread stroke, and the parts are so arranged and proportioned as to advance thesaid limits one convolution for each com plete stroke or reciprocation of the carriage 23. Thus when. the bobbin 10 is'half wound the carriage 23'has moved along the feed screw 27 so that the lower limit of'its movement is at the center of the length of the bobbin, while the upper limit of Vits movement is at .the upper end of the bobbin. In lthis way the bobbin` 10 is built'up with an eveny diameter for the: required bodyportion vand tapers offy at the upper end in the usual manner.v The superposed thread convolutions follow each other in regular sequence and in vabutting relation'lso that the continuity ofthe winding is uninterrupted even though there has been a'L breaking of the thread during the winding operation.V When the vbobbin is completely builtup it can be removed and anempty bobbin form placed in its place to be wound. The thread winding Vmechanism vis then brought to its initial posit-ion by manually springingthe finger 47 out of the thread of the screw 27 toy thereby releasethe carriage 23 and its parts.

I-Iavingthus' described my. invention, I

. 1; In a vwinding mechanism, the combina-- tion of a guide for athread, a bobbinarranged to cause said thread' to ybe wound thereon, `,means for reciprocating said guide over a portion Vof said bobbin, and means spaced from saidbobbin anddriven by said thread for varying the vposition of said guide relative to said bobbinl In a winding mechanism, the combination .of a guide fora thread, a bobbinarranged to cause saidl threadfto" be wound thereon, means .for reciprocating said guide over a portion of said bobbin, andineans spaced'from said bobbin land including a step-by-step mechanism drivenl by Vr said air-@aaron varying the position of said guia@ f relative tol said bobbin.

a in 'a winding mechanism, themmbination of a guide'for a thread, a bobbin arthereon, means for reciprocating said guide to cause said thread to move lengthwise of said bobbin while being wound, means for feeding said guide, and means spaced from said bobbin and driven by said thread for actuating said feeding means.

4. In a winding mechanism, the combination of a guide for a thread, a bobbin arranged to cause said thread tobe wound thereon, a carriage supporting said guide, a feed screw connected to said carriage, means for reciprocating said feed screw, and means spaced from said bobbin and driven by said thread for moving said carriage and guide relative to said feed screw.

5. In a winding mechanism, the combination of a guide for a thread, a bobbin arranged to cause said thread to be wound thereon, a carriage supporting said guide, a feed screw connected to said` carriage, means for reciprocating said feed screws, and means spaced from said bobbin and driven by said thread for intermittently moving said guide relative to said carriage.

6. In a winding mechanism, the combination of a guide for a thread, a bobbin arranged to'cause said thread to be wound thereon, a carriage supporting said guide, a feed screw connected to said carriage, means for reciprocating said 4feed screw, and means spaced from said bobbin and including a step-by-step mechanism driven by said thread for intermittently moving said guide relative to said carriage.

7. In a winding' mechanism, the combination of a guide for a thread, a bobbin arranged to cause said thread to be wound thereon, a carriage sup orting said guide, feed screw connecter to said carriage, means for reciprocating said feed screw, and means spaced from said bobbin and including a feed screw and va step-by-step mechanism driven by said thread for intermittently moving said guide relative to said carriage.

8. In a winding mechanism, the combination of a bobbin arranged to cause a thread to be wound thereon, a support mounted for reciprocatory motion, a carriage mounted on said support and movable with respect to said support, means for moving said carriage relative to said support at predetermined intervals, and a rotatable element continuously driven by said thread to actuate said carriage moving means.

9. In a winding mechanism, the combination of a bobbin arranged to cause a thread -to be wound thereon, a support mounted for reciprocatory motion, a carriage mounted on said support and movable with respect to said support, means for moving said carriage relativey to said support at prede-v termined intervals, andthread driven means spaced from said bobbin for actuating said carriage moving means.

l0. In a winding mechanism, the combination of `a bobbin arranged to cause a thread to be wound thereon, a support mounted for reciprocatory motion, a carriage mounted on said support and movable with respect to said support, means for moving said carriage relative to said support at predetermined intervals, and thread driven means spaced from said bobbin and including a` pulley for` actuating said car-` riage moving means.

ll. In a winding mechanism, the combination of a bobbin arranged to cause a thread to be wound thereon, a support mounted for reciprocatory motion, a carriage mounted on said support and movable with respect to said support, means for moving said carriage relative to said support at predetermined intervals, and thread driven means spaced from said bobbin and including a pulley and a step-by-step mechanism for actuating said carriage moving means.

Signed att-Philadelphia, in the county of Philadelphia,A and .State of Pennsylvania, this 9th day of November, 1921.

GEORGE E. ALLEN. 

